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/*
* GraphToolBinaryWriter.hpp
*
* Created on: 02.12.14
* Author: Maximilian Vogel
*/
#ifndef NETWORKIT_IO_GRAPH_TOOL_BINARY_WRITER_HPP_
#define NETWORKIT_IO_GRAPH_TOOL_BINARY_WRITER_HPP_
#include <networkit/io/GraphWriter.hpp>
namespace NetworKit {
class GraphToolBinaryWriter final : public GraphWriter {
public:
GraphToolBinaryWriter(bool littleEndianness = true);
void write(const Graph &G, std::string_view path) override;
private:
bool littleEndianness;
void writeAdjacencies(std::ofstream &file, const Graph &G);
uint8_t getAdjacencyWidth(uint64_t n);
void writeComment(std::ofstream &file);
void writeHeader(std::ofstream &file);
template <typename Type>
void writeType(std::ofstream &file, int width, Type val) {
// DEBUG("writing ",val, "with width ", width, " to file");
uint8_t *bytes = new uint8_t[width];
if (this->littleEndianness) {
for (int i = 0; i < width; ++i) {
bytes[i] = (val >> (i * 8)) & 0xFF;
}
} else {
for (int i = 0; i < width; ++i) {
bytes[i] = (val >> ((width - 1 - i) * 8)) & 0xFF;
}
}
file.write((char *)bytes, width);
delete[] bytes;
}
};
} /* namespace NetworKit */
#endif // NETWORKIT_IO_GRAPH_TOOL_BINARY_WRITER_HPP_